How can I change color and font size in plotconfusion figures?

Question

Antje 2013-5-23

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评论： Abdullah Al-Maliki 2020-11-27

Hi!

I want to change the color of the fields of the confusion matrix and also to change the font size of the entries in the fields. I know I can do it in the plot editor, but I prefer to do it automatically perhaps with set and get? I couldn't find anything in google on that topic.

Thanks for your help!

Just a little example:

a=[1 1 0 1 0 0 1 0 1 0 1 1 0 0 1 0 0 0 1 0];
b=[1 0 1 1 0 1 1 0 1 0 1 0 0 0 1 1 0 0 1 0];
figure(1)
plotconfusion(a,b)

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Answer 1

Antje 2013-5-23

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https://ww2.mathworks.cn/matlabcentral/answers/76739-how-can-i-change-color-and-font-size-in-plotconfusion-figures#answer_86406

在 MATLAB Online 中打开

I got it! :)

For those who are interested in the solution:

%defining my colors
f1=[0 0 139]/255;
f4=[50 205 50]/255;
f9=[236 0 0]/255;
f14=[85 26 139]/255;
%example
a=[1 1 0 1 0 0 1 0 1 0 1 1 0 0 1 0 0 0 1 0];
b=[1 0 1 1 0 1 1 0 1 0 1 0 0 0 1 1 0 0 1 0];
figure(1)
plotconfusion(a,b)
%fontsize
set(findobj(gca,'type','text'),'fontsize',20) 
%colors          
set(findobj(gca,'color',[0,102,0]./255),'color',f4)
set(findobj(gca,'color',[102,0,0]./255),'color',f9)
set(findobj(gcf,'facecolor',[120,230,180]./255),'facecolor',f4)
set(findobj(gcf,'facecolor',[230,140,140]./255),'facecolor',f9)
set(findobj(gcf,'facecolor',[0.5,0.5,0.5]),'facecolor',f1)
set(findobj(gcf,'facecolor',[120,150,230]./255),'facecolor',f14)

Not very elegant, but it works!

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Answer 2

Shivang Patel 2015-5-4

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My confusion matrix size is 19x19.. so, Is there any convenient way to display clearly...because u know when 19x19's confusionMatrix plot it's a overlap some value...n everything hochpoch !!!

Thanks for Advance...

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Walter Roberson 2017-8-8

No, there is no convenient way. You would have to do the plotconfusion() and then find the created objects and move them into a large container that you had created scrollbars for.

Abdullah Al-Maliki 2020-11-27

Use the command from the accepted answer above just change the font size from 20 to 5, Iused it and it helped to better show a 26 class confusion matrix.

set(findobj(gca,'type','text'),'fontsize',5)

PS I know this is an old thread but I'm posting this reply to help whoever might needed!

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